Does there exist a free as in freedom solution to apply speech-to-text recognition to a video to get subtitles?

This page summarizes the projects mentioned and recommended in the original post on /r/ffmpeg
speech-to-text Ffmpeg sox Deepspeech Python

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  • AutoSub

    A CLI script to generate subtitle files (SRT/VTT/TXT) for any video using either DeepSpeech or Coqui (by abhirooptalasila)

    • There's an interesting project here https://github.com/abhirooptalasila/AutoSub which uses FFmpeg & Deepspeech. YMMV around the accuracy.

  • CCAligner

    🔮 Word by word audio subtitle synchronisation tool and API. Developed under GSoC 2017 with CCExtractor.

    • The other interesting project (although looks like it is disbanded now) is https://github.com/saurabhshri/CCAligner, which is more about improving the quality of existing captions, but uses PocketSphinx for timing validation.

  • InfluxDB

    Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

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NOTE: The number of mentions on this list indicates mentions on common posts plus user suggested alternatives. Hence, a higher number means a more popular project.

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